Air-gun.



W. A. HEILPRIN.

AIR GUN.

APPLICATION FILED JUNE 24, 1912.

anoemtoz LQLUMUIA PLANOGRAPH C0,.WA5MINGTON, D. c.

EN j

AIR-GUN.

Specification of Letters Patent.

Patented May 26, 1914.

Application filed June 24, 1912. Serial No. 705,501.

To all whom it may concern.

Be it known that I, 'WILLIAM A. HEILPRIN, a citizen of the United Statesof America, and a resident of Philadelphia, in the county ofPhiladelphia and State of Pennsylvania, have invented new and usefullmprovements in AinGuns, of which the following is a specification.

This invention relates more particularly to air guns of the break downtype, and embodies in its construction a barrel, a cylinder, a springdriven piston, a link associated with the piston to compress the springthereof when the gun is broken and by such movement to effect engagementof the piston with a fixed abutment from which the piston is disengagedby movement of the trigger, the:

trigger being normally locked against movement by a spring actuatedslide which has to be manually actuated against movement of the springprior to actuating the trigger to release the piston.

The invention also comprises a construction in which is embodied asafety or look for the trigger organized so that the trigger lock cannot be reached to position the same so that the trigger can be moved torelease the piston until the parts of the gun have been brought intoposition for firing.

In the general make up of the gun, the parts are constructed with a Viewof reducing the cost of manufacture and at the same time retain thefeatures by which accuracy, safety, durability, simplicity and ease ofassembling are secured, and with suchends in view my invention consistsin the construction and combination of the parts as will be hereinafterset forth, the specification being directed more particularly to thePre-.

ferred form of'construction illustrated by the accompanying drawings.

In the drawings Figure 1, is a side elevation of an air gun made inaccord with my invention, such view showing the gun broken and certainparts in dotted lines. Fig. 2 is a longitudinal section of a part of thegun. 3 is a sectional view on the dotted line 3-3 of Fig. 2. Fig. l is aside elevation of the supporting casing for the trigger and triggerlock. Fig. 5 is a plan View of the supporting casing for the triggerlock. Fig. 6 is a rear elevation of the trigger lock. Fig. '7 is asectional view of the trigger lock on the line 7-7 Fig. 8 is a plan viewof the connecting piece. Figs. 9, l0 and 11 are plan views showingdifferent forms of the connecting link for retracting the piston rod.

Fig. 12 is a front elevation of the abutment washer through which thepiston rod passes, and Fig. 13 are rear and sectional views of the rearsight and catch for the hook of the piston rod. 7

In a gun which embodies the leading characteristics of my inventionthere is present a false barrel 15, which incloses the true barrel 16.The true barrel 16 is attached to a the rear end of the true barrel isscrew threaded to engage with a disk or washer 18 that is secured inplace between the false barrel and the cylinder. The false barrel andthe cylinder 19 are made from a single piece of sheet metal the edgesbeing on the underside and the cylinder is of larger diameter than thefalse barrel, the construction being such as to provide a shoulder 20between such parts and the washer 18 which is seated against theshoulder 20 and being soldered in place, forms a reinforce for theshoulder. The false barrel and cylinder may be made in two separatepieces the external diameter of the false barrel being substantially thesame as the internal diameter of the cylinder in which it is housed,'theparts being suitably connected to provide a cylinder for the head of thepiston. In the preferred form of construction the edges of the cylinderare overlaid by a strip 22, which is soldered in place to make an airtight joint between the parts and incidentally the strip reinforces thecylinder. The rear end of the cylinder 19 is shaped to provide below itstransverse center parallel side pieces 23, and the rear ends where thestock fitting contacts with the side pieces is the segment of a circle,the center of which is the pivotal point of the stock fitting. The sidepieces have apertures 24: which register with apertures through the sidepieces of a connecting frame and the upper part has an opening 25, forthe passage therethrough of the rear sight.

The connecting piece or frame 26, is

shaped from a sheet metal blank the lower fore portion thereof beingcurved both longitudinaily and transversely, the front end beingspinewha't reduced to admit of the same being easily inserted in therear end of cap 17, which may carry the front sight, and

the cylinder and at the same time provide a somewhat better bearing forthe washer or abutment 27 through which the piston rod passes andagainst which the spring that encircles the piston rod bears.

The side pieces of the connecting frame 26 have therethrough openings 28which register with the openings 24 and the sides have apertures 29 and30 and inward extending lugs 31, and the bottom portion has an opening32 for the passage of the trigger. The upper edges of the connectingframe are adapted to engage with the parallel side portions 23 of thecylinder and to contact with the underside of the catch 33 on the rearsight to hold the same in place. The rear portion of the connectingframe, when the gun is assembled, is overlaid by the sides of the stockfitting 34. The connecting frame 26 may have attached thereto thetrigger 35, guides for the trigger lock or safety 36, the guidesconsisting merely of parts of the side pieces and top which are bentinward and recessed to guide the slide 36.

The stock fitting 34 which is made of sheet metal has at its rearportion a socket within which is secured the fore end of the stock. Thefront edges are curved on a seg ment of a circle the center of which isthe fulcrum pin 37 that connects the stock fitting with the connectingframe 26, and also holds in place the frame 38 when such a frame isassociated with the connecting frame. The upper portion of the stockfitting through the drop has an opening 39 for the passage of the upperend of the trigger look 36 and the sides have circular indents 4:0 toengage with the walls of the apertures 29 to hold the stock fitting inposition for firing. The pin 41 carried by the stock fitting connectsthe link 42 in swinging engagement therewith, such pin being passedthrough the openings at the rear ends of the link.

.The trigger and safety frame 38 is made up of a single piece of sheetmetal which is pressed into shape, a part of the lower portion of theframe 38 is removed to provide for the movement of the trigger, the openended slot overlying the opening 32, when the prongs 43 are placedbeneath the retaining lugs 31. The forward upper portions of the frameare bent inward to bear against the sides of the trigger about thefulcrum pin or rivet 44;, the bottom of the frame at its rear is bentupward to provide a part- 45 that abuts against the inner face of asimilar part at the rear lower portion of the connecting frame 26. Thesides of the frame 38 have lugs 17 with recesses to engage with theedges of the trigger lock 36 and the top of the frame is cut away toprovide guide recesses 18. The trigger lock or safety 36 is reduced atits upper end which is bent over to provide a finger piece 49 and thereis an opening 50 through the plate for the passage of a part on thetrigger when the trigger lock is depressed.

The trigger 35 may be made of cast metal and comprises a projectingportion for engagement and release of the piston bar from its catch 33,below the fulcrum of the trigger for normal contact with a part of thetrigger lock is a projection 51, and the outer or exposed portion of thetrigger 52 is shaped to simulate the shape of a trigger guard, in itspreferred form. The external part of the trigger may be indented toweaken the same at a point where it will break without destroying theeflicacy thereof in case of rough usage. The trigger is held inoperative position by a spring 53, which spring also actuates the safety36 to hold the trigger in normally locked position. The spring is madein a single piece, one end engaging with the trigger below the lug 51and from such point extends about the pin 44 and then rearward and againforward passing through the opening 50 through the trigger lock andengaging the trigger lock to hold the same moved upward so that the partthat is below the opening will be engaged by the lug 51 of the trigger.

The piston rod 54 between the piston head and the washer 27 is encircledby a spring 55 and the rear end of the piston rod is shaped to provide alatch for engagement with the catch 33 and the extreme rear end of thepiston rod is shaped to provide a part with which the trigger willengage to depress the rear end of the rod and release the same from thecatch. The link 42 that engages with the pin 41 of the stock fittingalso engages with the end wall of a slot 57 formed through a portion ofthe piston rod 54.

In toy guns the greatest wear comes upon the catch and the latch andwith the construction shown these parts may be made of metal that may behardened to obviate wear. The links may be of a variety of shapes but ineach instance I prefer to have them curved longitudinally to positionthe same when the gun is broken adjacent to the safety to protect thesame against accidental movement when the gun is broke.

The longitudinally curved link is a desirable feature in a gun of thetype shown, where the hook on the piston rod extends upward to engagewith a part that holds the piston rod in retracted posit-ion untilreleased by the trigger, for when the pivotal point of the rear end ofthe link is moved to be above the horizontal plane of the end of thehook and catch therefor it exerts a draft on a direct line which has atendency to raise the end of the piston rod to engage with the catch,but such engagement is not always certain with a straight link or directpull and in order to render the upward movement of the rear end of thepiston rod positive the link is curved longitudinally to span the safetyand the end of the trigger as a guard for the same when the gun isbroken.

It will be noted that when the gun is broken the link exerts a rearwardand upward pull upon the piston rod which causes the hook to ride uponand then engage the catch which positions the, extension l6 beneath theprong on the upper end of the trigger, and when the stock fitting isbrought in alinement with the connecting frame the safety will passthrough the opening in the stock fitting in position to be depressed bythe thumb when a finger engages the trigger, for as hereinbefore setforth the trigger can not be moved to release the piston rod until thesafety has been depressed.

I claim.

1. In an air gun, a one piece construction which includes a falsebarrel; a cylinder and an end portion having depending sides such endportion being open at the bottom and rear end, a connecting pieceattached to the depending sides of the end portion and astock fittingpivoted to the connecting piece and adapted to frictionally engagetherewith.

2. In an air gun, a sheet metal false barrel, a cylinder in the rear ofthe false barrel, a part integral with the cylinder providing dependingparallel side portions, a connecting piece attached to the dependingside portions which are integral with the cylinder and shaped to enterthe rear end of the cylinder when connected to the side pieces thereof,a stock fitting pivoted directly to the connecting piece and adapted tofrictionally engage therewith when positioned to overlie the same.

3. In a gun, a false barrel, a cylinder, parallel side pieces at therear of the cylinder and integral therewith, a connecting piece which isassociated with the side pieces to be partly overlaid thereby, theforward end thereof being reduced to enter the rear end of the cylinder,a stock fitting fulcrumed upon the connecting piece to overlie the rearportion of said connecting piece and engage with the rear portion of theside pieces, and means on the stock fitting for frictionally engagingthe connecting piece.

-l. In a gun, a cylinder, parallel depending side pieces at the rear ofthe cylinder and integral therewith, a connecting piece shaped to haveits forward end reduced to enter the rear end of the cylinder, means forfixedly attaching the connecting piece to the parallel side pieces, astock fitting fulcrumed upon the rear portion of the connecting piece,and means for effecting frictional engagement of the stock fitting withthe connecting piece,

5. In a gun, a cylinder having at its rear end parallel side piecesconnected by a curved top portion, an opening through the top portion, aconnecting piece, a catch having a part which is seated in the openingand a part that is engaged by the connecting piece to retain the catchin place.

6. In a gun, the combination with a cylinder having integral side piecesat its rear end, a connecting piece shaped to enter and engage the rearend of the cylinder and to e overlaid by the side pieces which areintegral with the cylinder, a stock fitting fulcrumed upon the rearupper portion of the connecting piece and adapted to be swung to overliethe rear portion of the connecting piece and to frictionally engage theconnecting piece, an opening through the upper portion of the stockfitting, and a trigger-lock associated with the connecting piece a partof the trigger-lock being adapted to pass through the opening throughthe stock fitting when the connecting piece and the stock fitting are infrictional engagement one with the other.

7. In an air gun, a cylinder having at its rear end extension providedwith parallel side pieces which depend below the lower edge of thecylinder, apertures through the side pieces, a connecting piece providedwith registering apertures and a forward end which is adapted to enterthe rearropen end of the cylinder, means that pass through the aperturesin the side pieces and the connecting piece to associate the parts, atrigger and a trigger-lock associated with the con necting piece, astock fitting fulcrumed upon the connecting piece and provided with anopening therethrough for the passage of a part ofthe trigger-lock.-

8. In a gun, a cylinder having at its rear portion an extension shapedto provide parallel side pieces and a rounded top portion, a connectingpiece shaped to have parallel sides which are connected by a bottomportion that has a trigger opening therethrough said connecting piecehaving a contracted front end that is seated in the rear end of thecylinder, means for fixedly connecting the parallel side pieces of thecylinder with the forward portion of the connecting piece and a stockfitting fulcrumed upon the connecting piece to be swung over its rearportion to engage with the rear portion of the parallel side pieces andwith the rear edge of the top.

9. Ina gun, the combination with a cylinder having at its rear anextension comprising a top portion having an opening therethrough andsides which depend from the top, a connecting piece having asubstantially closed bottom; parallel sides and a reduced fore end thatenters the cylinder, a cat-ch seated in the opening through the top partof the extension of the cylinder to be held therein by being engaged bythe upper portion of the sides of the connecting piece, a stock fittinghaving a substantially closed upper portion and sides which overlie thesides of the connecting piece, a piston rod, a link that engages thepiston rod and the stock fitting to move the piston rod in engagementwith the catch and a trigger carried by the connecting piece.

10. In a gun the combination of a false barrel, a cylinder and anextension of the cylinder, a connecting piece fixedly attached to theextension on the cylinder, a trigger carried by said connecting piece, apiston rod, a catch for the piston rod maintained between the extensionof the cylinder and the connecting piece, a stock fitting fulcrumed uponthe connecting piece and a link connected to the piston rod and to thestock fitting.

11. In a gun, a cylinder having an extension which is open at its bottomand at its rear end, a. connecting piece open at its forward end and atits top the same having an opening for a trigger through its lowerportion, a stock fitting that is open at its front and underside theupper portion having an opening for a trigger lock therethrough, atrigger associated with the connecting piece and extending through theopening beyond the connecting piece, a trigger lock associated with theconnecting piece and provided with a part that extends beyond the upperportion of the connecting piece to pass through the opening in the stockfitting.

12. In a gun, a cylinder, an extension integral with the cylinder, aconnecting piece attached to the extension of the cylinder, a triggerand a trigger lock associated with the connecting piece, a piston rod, astock fitting fulcrumed upon the connecting piece, a link engaging thepiston rod and the stock fitting, a catch for the piston rod thatengages the extension of the cylinder and is engaged by the connectingpiece; the parts being organized so that when the gun is broken thepiston rod will be retracted to engage to catch and locate the end ofthe piston rod below a projecting part on the trigger? Y 13. In an airgun, a trigger made up of a single piece and provided above its pivotwith a. part that extends forward and below its pivot with a part thatextends rearward, a piston rod which is adapted to be engaged andreleased by the forward extending part on the trigger, a trigger lockmaintained transversely of the trigger and in slidable engagement withits supporting means, means for maintaining one end of the trigger locknormally projected upward through the frame of the gun for manualdepression to position a part of the trigger lock out of position to heengaged by the trigger.

14:. In combination with a trigger having a rearward extending portion,of a spring actuated trigger lock having a portion with which therearward extending portion of the trigger will normally engage and anopening above such portion through which the rearward extending portionof the trigger may pass when the opening and extension are brought inalinement, and means for holding the trigger-lock normally in positionto be engaged by the trigger the parts being organized so that pressurewill have to be applied to the trigger-lock and maintained thereon toadmit of such movement of the trigger as will release the piston rod.

15. In combination with a trigger, a longitudinally slidable triggerlock made of a single piece and mounted between guides, a spring whichis doubled upon itself longitudinally to provide oppositely projectingends for moving the lower portion of the trigger forward and the triggerlock upward to normally hold the trigger lock in position to be engagedby the trigger so that manual pressure will have to be simultaneously onerted upon both the trigger lock and the trigger to effect operativemovement of the trigger.

16. In an air gun, a frame comprising a cylinder, a stock fitting havingtherethrough an opening for a trigger lock, a connecting piece forassociating the cylinder with the stock fitting, means carried by theconnecting piece for supporting a trigger; a trigger lock and a springfor actuating the trigger and the trigger lock, a piston rod and a linkpiv otally connected to the stock fitting and maintained in slidable andpivotal relation with the piston rod.

17. In an air gun, a frame, a piston-rod retaining catch carried by theframe, a piston-rod having a part that engages with the catch to holdthe piston-rod retracted and a part that extends rearward beyond thesame, a trigger fulcrumed upon the frame and provided above its fulcrumwith a forwardly projecting part which is positioned above the rearwardextending part of the pistonrod and a spring for moving the trigger inone direcion.

18. In a gun, a frame constituting a carrier for a trigger and a triggerlook, a trigger pivoted to the frame, guides for a trigger lock on saidframe and a spring the opposite ends of which are disposed so that oneend of the spring will engage the trigger and the opposite end with thetrigger lock, and means for associating the trigger and trigger lockcarrying frame with a part of the frame of the gun.

19. In an air gun, a frame, a trigger pivoted to the frame, alongitudinally slidable trigger lock associated with the frame to extendtransversely between the sides of the frame and in the rear of thetrigger, a spring for projecting the trigger lock upward to.

position a part thereof beyond the frame and the lower part of the lockin position to be engaged by the trigger, an opening through th triggerlock which will register when the trigger lock is depressed with arearward extending portion of the trigger and means on the trigger lockto restrict its upward movement.

20. In a gun, a slidable spring actuated trigger lock having a part thatis normally positioned by a spring to be engaged by the trigger and torestrict its rearward movement and an opening through the trigger lockfor the passage of a part of the trigger when the trigger lock isdepressed and a spring having a looped portion which is passed throughthe aforesaid opening through the trigger lock.

21. In an air gun, a barrel,'a cylinder having an extension whichextends rearward of the cylinder, an opening through the upper portionof the extension for the passage therethrough of a sight, a connectingpiece for a stock fitting, a combined rear sight and abutment for apiston rod made of a single piece and comprising a laterally extendingpart that is engaged by and held in place by the connecting piece.

22. In a gun, an abutment for the hooked end of a piston rod and a rearsight formed integral with the abutment.

23. In a gun, a cylinder extension having a transversely curved upperportion, an abutment or catch having curved side portions, a rear edgewith a centrally located recess and a part that extends substantially atright angles thereto for engagement with the walls of an opening throughthe cylinder extension.

24. In a gun, a cylinder, a rearward extension beyond the cylinder, aconnecting piece having at its forward end a reduced part with ashoulder adjacent thereto to enter the cylinder and bear against a partof the same, an abutment for a spring and guide for a piston rodpositioned within the cylinder to be forced against the forward end ofthe connecting piece by the spring.

25. In a gun, a cylinder, a piston rod having a hook and an extensionbelow the hook, a catch for the hook of the piston rod, a spring formoving the piston rod forward in the cylinder, a trigger having aforward extending portion above its fulcrum to overlie the extension onthe piston rod to release the hook from the catch when the trigger ismoved rearward and a link connecting the piston rod with retractingmeans.

26. In a gun, a connecting piece having parallel sides with inwardextending lugs and a bottom with a trigger opening therethrough, acarrier for a trigger formed with projections to underlie the lugs ofthe connecting piece, apertures through the sides of the connectingpiece and the carrier which register, a stock fitting that overlies andfrictionally engages the connecting piece and a pin for connecting theparts such pin also providing a fulcrum for the stock fitting.

27. In a gun, a connecting piece for the cylinder and stock fittinghaving sides with inwardly extending lugs; a bottom provided with anopenin for the passage of a trigger therethroug and a rear wall, acarrier having sides with extensions which underlie the lugs of theconnecting piece, a trigger pivoted to the carrier, a trigger lockmaintained in sliding engagement with the carrier to be engaged by thetrigger and a spring for moving the trigger and the trigger lock.

28. In an air gun, a frame, a trigger pivoted to the frame and providedwithin the frame with a reduced rearward extending portion, alongitudinally slidable trigger lock associated with the frame to extendtransversely between the sides of the frame, a spring for projecting theupper portion of the trigger lock upward beyond the frame to maintain apart of the lock in position to be engaged by the rearward extendingportion of the trigger, an opening through the trigger lock which willregister with the rearward projecting portion of the trigger when thetrigger lock is depressed and means for restricting upward movement ofthe trigger lock.

29. In an air gun, a barrel, a cylinder, an abutment, a piston barprovided at its rear portionwith a hook for engagement with theabutment, a longitudinally curved link which engages with the piston barand is pivotally attached above its point of connection with the pistonbar to a stock fitting so that the intermediate portion of the link willbe below the points of attachment with piston bar and the stock fitting,a stock fitting which is pivotally associated with the fore part of thegun, the parts being organized to effect an upward movement of theCopies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. G.

